Reactive emulsifier amphiprotic styrene surface sizing agent and preparation method thereof

Abstract

The invention discloses a reactive emulsifier amphiprotic styrene surface sizing agent and a preparation method thereof; the molecular structure of the reactive emulsifier amphiprotic styrene surface sizing agent is shown as the accompanying drawing. The preparation method of the reactive emulsifier amphiprotic styrene surface sizing agent comprises the following steps that: first, polyethylene glycol, stearic acid and maleic anhydride react to obtain maleic acid polyethylene glycol single-stearic acid ester; then ammonium persulfate serves as an initiator, and maleic acid polyethylene glycol single-stearic acid ester, styrene, acrylic acid, methacryloyloxyethyl trimethyl ammonium chloride and acrylonitrile are prepared into the reactive emulsifier amphiprotic styrene surface sizing agent through copolymerization reaction; and the obtained reactive emulsifier amphiprotic styrene surface sizing agent is characterized by excellent integration with fibers, reduced hair and powder drop, higher seizing degree, high surface strength, good ink absorbability, capability of adapting to high-speed printing and the like.

Description

technical field The invention relates to the field of preparation of light paper surface sizing agents, in particular to a reactive emulsifier amphoteric styrene-acrylic surface sizing agent and a preparation method thereof. Background technique my country has now entered the ranks of the world's largest paper production and consumption countries, and hundreds of varieties of paper chemicals are needed in the paper production process. In modern papermaking technology, surface sizing has become the main form of paper surface sizing treatment. Surface sizing agents with excellent performance can reduce the phenomenon of lint and powder loss of paper sheets and improve the surface strength of paper, while effectively improving the surface strength of paper. The folding endurance, water resistance, tensile strength, stiffness and smoothness of the paper can reduce the air permeability, improve the printing performance, etc., and significantly improve the quality grade and use va...

AI Technical Summary

Problems solved by technology

The pulp ratio used in the production of light paper is mainly chemical mechanical pulp. These pulps contain a large amount of lignin, the fibers are relatively stiff, and the bonding force between fibers is poor. Due to the loose fiber structure of light paper, the thickness is relatively thick. Large, its tensile properties are poor, and it is very easy to be deformed by moisture. These factors cause the surface strength and smoothness of the paper sheet to decrease, so that powder and hair fall off during the printing process.

On the other hand, with the continuous development of printing technology and equipment, the printing industry has higher and higher requirements for the surface s...

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